Overview
Text Structure and Purpose questions in the Digital SAT Craft and Structure domain assess whether students can identify HOW a passage is organized (structure) and WHY the author wrote it (purpose). Students must recognize one of six core organizational patterns, identify the function of specific paragraphs or sentences within the larger text, and use signal words as structural signposts. Unlike Author’s Purpose questions (which focus on the author’s overall intention), Text Structure questions emphasize the logical architecture of the text.
Key Points
1. The Six Core Organizational Patterns
| Pattern | Definition | Key Signal Words |
|---|---|---|
| Chronological / Narrative | Events in time order | first, then, next, later, finally, subsequently, before, after, at that time |
| Cause and Effect | Why something happened and what resulted | because, therefore, as a result, consequently, thus, leads to, causes, due to |
| Compare and Contrast | Similarities and/or differences | similarly, likewise, in contrast, on the other hand, however, while, whereas, both, yet |
| Problem and Solution | A problem described, then a solution proposed | problem, issue, challenge, solution, resolve, remedy, approach, address, overcome |
| Claim and Evidence | Central claim supported by evidence or reasoning | for example, for instance, as evidence, this shows, research indicates, studies suggest |
| General to Specific | Broad statement narrowed to a concrete example (or vice versa) | in particular, specifically, to illustrate, in general, broadly, namely, that is, such as |
2. Question Types
Type A — Whole-passage structure: “Which choice best describes the overall structure of the passage?”
- Answer: describes the relationship between sections (e.g., “presents a problem, then proposes two potential solutions”).
Type B — Whole-passage purpose: “The main purpose of the passage is to…”
- Answer: an infinitive verb phrase (same verb bank as Author’s Purpose questions).
- Scope must cover the entire passage, not a single detail.
Type C — Paragraph or sentence function: “The function of the [sentence/paragraph] is to…”
- Answer: describes the ROLE of that unit within the passage (e.g., “introduce a counterexample,” “provide supporting evidence,” “transition to a new topic”).
3. Signal Words Master List by Pattern
Chronological: first, second, third, then, next, later, afterward, subsequently, finally, at that time, before, after, since, when, during
Cause-Effect: because, since, therefore, thus, consequently, as a result, leads to, causes, due to, results in, brings about, produces, stems from
Compare-Contrast: however, although, while, whereas, in contrast, on the other hand, similarly, likewise, both, neither, yet, conversely, despite, even though, at the same time
Problem-Solution: problem, challenge, issue, difficulty, obstacle, solution, resolve, remedy, approach, address, overcome, answer, fix, response
Claim-Evidence: for example, for instance, specifically, such as, research shows, data indicates, this suggests, as evidence, to illustrate (this specific claim), according to
General-Specific: in general, broadly speaking, in particular, specifically, namely, that is, to illustrate, for example, in this case, more precisely
4. Function of Paragraph Units
When a question asks about the function of a specific sentence or paragraph, these are the most common correct answer descriptions:
| Function Label | What the unit does |
|---|---|
| Introduces a claim | States the main argument for the first time |
| Provides supporting evidence | Offers data or examples backing the claim |
| Introduces a counterexample | Presents a case that challenges the claim |
| Acknowledges a limitation | Concedes that the claim has a boundary condition |
| Transitions to a new topic | Bridges two sections of the passage |
| Offers a qualification | Adds nuance or a condition to limit the claim |
| Provides background context | Gives history or definitions needed to understand the claim |
| Draws a conclusion | Summarizes and restates the main point |
5. Strategy: The 3-Step Method
- Read actively — circle or underline signal words as you read. They reveal the structure immediately.
- Outline mentally — create a quick mental bullet list: “The author starts with X, then provides Y, then contrasts with Z.” Match this outline to the answer choices.
- Eliminate structurally — eliminate any answer where even one structural element does not match the passage. If the passage does not have a “solution,” eliminate “problem-solution.”
Pitfalls and Common Mistakes
Pitfall 1: Too Narrow Scope The answer correctly identifies the structure of one paragraph but not the whole passage. Fix: For whole-passage questions, your answer must account for every major section, not just the opening or closing.
Pitfall 2: Too Broad Scope The answer describes a structure or purpose that goes beyond what the passage actually covers. Fix: Verify that every claim in the answer is supported by something actually in the passage.
Pitfall 3: Cause-Effect vs. Problem-Solution Confusion Both involve a relationship between two events or situations, but they serve different functions. Fix: Cause-effect explains WHY something happened (looking backward). Problem-solution proposes WHAT TO DO (looking forward). If the passage describes an event and its aftermath, it is cause-effect. If it describes a difficulty and then recommends a course of action, it is problem-solution.
Pitfall 4: Ignoring Signal Words Failing to notice transition words leads to misidentifying the pattern. Fix: Always annotate signal words before reading the answer choices. They are your fastest path to the correct structure.
Pitfall 5: Describing Content, Not Structure Choosing an answer that says WHAT the passage is about rather than HOW it is organized. Fix: Structure answers describe relationships (e.g., “contrasts two theories”) not content (e.g., “discusses climate change”). If your answer could be summarized as “the passage is about X,” it is likely a content answer, not a structure answer.
Pitfall 6: Wrong Function Verb Paragraph function answers use verbs like “introduce,” “support,” “contrast,” “qualify,” “conclude.” Choosing the wrong verb (e.g., “refutes” when the paragraph actually “qualifies”) is a common error. Fix: Determine exactly what the paragraph does: does it add to the argument, push back on it, or limit it? Then match the appropriate verb.
Related Entries
Quick Reference Card
| Pattern | Core Relationship | Fastest Signal Word |
|---|---|---|
| Chronological | Events in time order | then / next / finally |
| Cause-Effect | Why → what resulted | because / therefore / as a result |
| Compare-Contrast | Similarities / differences | however / in contrast / similarly |
| Problem-Solution | Difficulty → recommended action | problem / solution / address |
| Claim-Evidence | Position → support | for example / research shows |
| General-Specific | Broad → narrow (or reverse) | in particular / specifically |
Question scope rule: Whole-passage = covers ALL major sections. Paragraph/sentence = describes THAT UNIT’S ROLE only.
Anti-trap rule: Structure answers describe HOW (the relationship between parts). Content answers describe WHAT (the topic). Always choose the structure answer.